MMBZ5242BLT1G

Single Zener Diodes Overview

The MMBZ5242BLT1G is a single Zener voltage regulator diode manufactured by onsemi, housed in an SOT-23 (TO-236AB) surface-mount package. It provides a nominal Zener voltage of 12 V with a tolerance of ±5%. The device operates at a test current of 20 mA and features a maximum Zener impedance of 30 Ohms. It has a total power dissipation rating of 225 mW on an FR-5 board at 25°C ambient temperature. The component supports a junction temperature range from -65°C to +150°C and exhibits a maximum reverse leakage current of 1 µA at 9.1 V.

Single Zener Diodes Feature Summary

• Designed for voltage regulation with minimal space requirements using the SOT-23 surface mount package.
• Optimized for automated board assembly processes suitable for high-density applications.
• Provides electrostatic discharge protection rated at Class 3 (>16 kV) per the Human Body Model.

Single Zener Diodes Applications

• Cellular phones
• Handheld portable devices
• High density PC boards

Single Zener Diodes Procurement Notes

Verify the specific part number suffix against official documentation to confirm compliance with RoHS standards and lead-free status. Ensure that the ordering information matches the required tape and reel specifications for automated assembly. Confirm that the device marking corresponds to the electrical characteristics table provided in the datasheet for accurate identification.

Single Zener Diodes Selection Notes

Select this component when a precise 12 V reference is required within tight spatial constraints on a printed circuit board. Consider the thermal resistance and derating curves if operation exceeds standard ambient temperatures. Verify that the application current does not exceed the maximum ratings defined for the SOT-23 package to maintain reliability.

Single Zener Diodes Part Context

This device belongs to the MMBZ52xxBLT1G series of Zener voltage regulators. The series offers a wide range of nominal voltages from 2.4 V to 91 V within the same physical footprint. The 'G' suffix indicates lead-free packaging compliant with environmental directives. The series is designed to replace through-hole components in modern compact electronics designs.

Single Zener Diodes Replacement Considerations

Direct substitutes within the same series include MMBZ5242BT1G. Cross-referencing pinout configurations and thermal characteristics is necessary when replacing with components from other manufacturers.

Single Zener Diodes FAQ

What is the pin configuration for the MMBZ5242BLT1G?

Pin 1 is the Anode, Pin 2 is No Connection, and Pin 3 is the Cathode.

What is the maximum operating junction temperature?

The maximum operating junction temperature is +150°C.